1. Which of the following correspondence is a functon?i. one to one ii. one to many iii. many to one iv. No onea. i only b. ii only c. ii and iii d. i and iii2. Which of the following is not a function?a. The rule that assigns the name of the school to each student.b. The rule that assigns to each person his/her surname.c. The rule that assigns to each person his/her mobile numberd. The rule that assigns to each child his/her mother.3. Which among the relations is not a funcon?a. {(0,5), (0,4), (4,0), (5,0), (5,4)}b. {(-2,5), (0,5), (2,5), (4,5)}c. {(-3,2), (-2,5), (-1,8), (3,2)}d. {(8,0), (7,0), (6,0), (9,0)}4. Which of the following describes a function?5. Which of the following graphs does not belong to the group?6. In the function f(x) = 2x, what is the value of the function if x = 0?a. 0 b. 1 c. 2 d. 47. Given f(x) = x98 – x50 + 1, what is f (-1)?a. 0 b. 1 c. 48 d. 148For numbers 8 – 11. If f(x) = x – 5 and g(x) = 3x + 1, what is:8. The sum of the two functions f and g?a. 2x – 6 b. 2x + 6 c. 4x – 4 d. 4x + 49. The difference of the two functions f and g?a. -4x – 6 b. 4x + 6 c. -2x – 6 d. 2x + 6 10. The product of the two functions f and g?a. 3x2 – 14x + 5 b. 3x2 + 14x – 5 c. 3x2 – 14x – 5 d. 3x2 – 14x2 + 511. The quotient of the two functions f and g?a. b. c. d. 12. Given g(x) = 3x and h(x) = -3x, what is (g ◦ h)(x)?a. 9x b. -9x c. 6x d. -6x13. What does the expression represent?a. rational function b. rational equation c. rational inequality d. rational expression14. Which of the following ordered pairs is not a solution to f(x) = x + 4?a. (0, 4) b. (-5, -1) c. (2, 6) d. (1, 2)14. What is the value of x in the equation ?a. 1 b. 2 c. 3 d. 416. What is the value of x in the equation ?a. 2 b. 4 c. 6 d. 817. In the function , for what values will the function be undefined?a. -6 and 4 b. 10 and 4 c. -6 and -4 d. -10 and 418. What is the symbol for the inverse of a function?a. b. c. d. 19. What is the inverse of f(x) = 4x + 1?a. b. c. d. 20. A part-time job gives you an hourly wage of P50.00. If you work for more than 40 hours per week, you get an overtime pay that is 1.5 times your normal hourly wage. Which of the following piecewise function P(h) that gives your weekly pay in terms of the number of hours h you worked that week.a. c. b. d. My answers:1.c2.a3.b4.a5.b6.a7.b8.c9.c10.b11.a12.b13.a14.b15.a16.d17.c18.a19.a20.di hope it helps (◍•ᴗ•◍)
D. 12.5 A3.What is the voltage of a circuit that has a resistance of 6 kq and acurrent of 2 mA?А. 9VB.C. 11 V12 V4. What will happen to the current if the voltage is reduced to one half?tripledВ. doubledC. decreased by one halfdecreased by one fourth5. Calculate the voltage if the current passing through the wire is 3 A,and has a resistance of 10 9A. 6 VB. 30 VC. 75 VD.150 V6. What is the voltage across a 6 2 load when 3 A of current passesthrough it?2VB. 9VC. 18 VD. 36 V
